diff --git a/src/runtime/tests.rs b/src/runtime/tests.rs
index 17a6aac7bc715623c08fbdf995688b6dfc39c7e2..b9cf20cd3d9a847e5d489335d4b310605476d26c 100644
--- a/src/runtime/tests.rs
+++ b/src/runtime/tests.rs
@@ -37,9 +37,9 @@ fn file_logged_configured_connector(
     Connector::new(file_logger, pd, connector_id)
 }
 static MINIMAL_PDL: &'static [u8] = b"
-primitive sync(in<msg> a, out<msg> b) {
+primitive sync_component(in<msg> a, out<msg> b) {
     while (true) {
-        synchronous {
+        sync {
             if (fires(a) && fires(b)) {
             	msg x = get(a);
             	put(b, x);
@@ -51,7 +51,7 @@ primitive sync(in<msg> a, out<msg> b) {
 }
 
 primitive together(in<msg> ia, in<msg> ib, out<msg> oa, out<msg> ob){
-  while(true) synchronous {
+  while(true) sync {
     if(fires(ia)) {
       put(oa, get(ia));
       put(ob, get(ib));
@@ -102,7 +102,7 @@ fn new_sync() {
     let test_log_path = Path::new("./logs/new_sync");
     let mut c = file_logged_connector(0, test_log_path);
     let [o, i] = c.new_port_pair();
-    c.add_component(b"", b"sync", &[i, o]).unwrap();
+    c.add_component(b"", b"sync_component", &[i, o]).unwrap();
 }
 
 #[test]
@@ -353,7 +353,7 @@ fn cannot_use_moved_ports() {
     let test_log_path = Path::new("./logs/cannot_use_moved_ports");
     let mut c = file_logged_connector(0, test_log_path);
     let [p, g] = c.new_port_pair();
-    c.add_component(b"", b"sync", &[g, p]).unwrap();
+    c.add_component(b"", b"sync_component", &[g, p]).unwrap();
     c.connect(SEC1).unwrap();
     c.put(p, TEST_MSG.clone()).unwrap_err();
     c.get(g).unwrap_err();
@@ -369,7 +369,7 @@ fn sync_sync() {
     let mut c = file_logged_connector(0, test_log_path);
     let [p0, g0] = c.new_port_pair();
     let [p1, g1] = c.new_port_pair();
-    c.add_component(b"", b"sync", &[g0, p1]).unwrap();
+    c.add_component(b"", b"sync_component", &[g0, p1]).unwrap();
     c.connect(SEC1).unwrap();
     c.put(p0, TEST_MSG.clone()).unwrap();
     c.get(g1).unwrap();
@@ -421,7 +421,7 @@ fn distributed_msg_bounce() {
                 c.new_net_port(Putter, sock_addrs[0], Active).unwrap(),
                 c.new_net_port(Getter, sock_addrs[1], Active).unwrap(),
             ];
-            c.add_component(b"", b"sync", &[g, p]).unwrap();
+            c.add_component(b"", b"sync_component", &[g, p]).unwrap();
             c.connect(SEC1).unwrap();
             c.sync(SEC1).unwrap();
         });
@@ -882,7 +882,7 @@ fn ac_not_b() {
             let pdl = b"
             primitive ac_not_b(in<msg> a, in<msg> b, out<msg> c){
                 // forward A to C but keep B silent
-                synchronous{ put(c, get(a)); }
+                sync { put(c, get(a)); }
             }";
             let pd = Arc::new(reowolf::ProtocolDescription::parse(pdl).unwrap());
             let mut c = file_logged_configured_connector(1, test_log_path, pd);
@@ -946,7 +946,7 @@ fn many_rounds_mem() {
 fn pdl_reo_lossy() {
     let pdl = b"
     primitive lossy(in<msg> a, out<msg> b) {
-        while(true) synchronous {
+        while(true) sync {
             msg m = null;
             if(fires(a)) {
                 m = get(a);
@@ -965,7 +965,7 @@ fn pdl_reo_fifo1() {
     let pdl = b"
     primitive fifo1(in<msg> a, out<msg> b) {
         msg m = null;
-        while(true) synchronous {
+        while(true) sync {
             if(m == null) {
                 if(fires(a)) m=get(a);
             } else {
@@ -985,7 +985,7 @@ fn pdl_reo_fifo1full() {
     primitive fifo1full(in<msg> a, out<msg> b) {
         bool is_set = true;
         msg m = create(0);
-        while(true) synchronous {
+        while(true) sync {
             if(!is_set) {
                 if(fires(a)) m=get(a);
                 is_set = false;
@@ -1012,7 +1012,7 @@ fn pdl_msg_consensus() {
     let test_log_path = Path::new("./logs/pdl_msg_consensus");
     let pdl = b"
     primitive msgconsensus(in<msg> a, in<msg> b) {
-        while(true) synchronous {
+        while(true) sync {
             msg x = get(a);
             msg y = get(b);
             assert(x == y);
@@ -1040,7 +1040,7 @@ fn sequencer3_prim() {
     let pdl = b"
     primitive sequencer3(out<msg> a, out<msg> b, out<msg> c) {
         u32 i = 0;
-        while(true) synchronous {
+        while(true) sync {
             out to = a;
             if     (i==1) to = b;
             else if(i==2) to = c;
@@ -1087,7 +1087,7 @@ fn sequencer3_comp() {
     let pdl = b"
     primitive replicator<T>(in<T> a, out<T> b, out<T> c) {
         while (true) {
-            synchronous {
+            sync {
                 if (fires(a) && fires(b) && fires(c)) {
                     msg x = get(a);
                     put(b, x);
@@ -1099,7 +1099,7 @@ fn sequencer3_comp() {
         }
     }
     primitive fifo1_init<T>(bool has_value, T m, in<T> a, out<T> b) {
-        while(true) synchronous {
+        while(true) sync {
             if(has_value && fires(b)) {
                 put(b, m);
                 has_value = false;
@@ -1181,7 +1181,7 @@ fn xrouter_prim() {
     let test_log_path = Path::new("./logs/xrouter_prim");
     let pdl = b"
     primitive xrouter(in<msg> a, out<msg> b, out<msg> c) {
-        while(true) synchronous {
+        while(true) sync {
             if(fires(a)) {
                 if(fires(b)) put(b, get(a));
                 else         put(c, get(a));
@@ -1222,7 +1222,7 @@ fn xrouter_comp() {
     let pdl = b"
     primitive replicator<T>(in<T> a, out<T> b, out<T> c) {
         while (true) {
-            synchronous {
+            sync {
                 if (fires(a) && fires(b) && fires(c)) {
                     msg x = get(a);
                     put(b, x);
@@ -1236,7 +1236,7 @@ fn xrouter_comp() {
 
     primitive merger(in<msg> a, in<msg> b, out<msg> c) {
         while (true) {
-            synchronous {
+            sync {
                 if (fires(a) && !fires(b) && fires(c)) {
                     put(c, get(a));
                 } else if (!fires(a) && fires(b) && fires(c)) {
@@ -1249,7 +1249,7 @@ fn xrouter_comp() {
     }
 
     primitive lossy<T>(in<T> a, out<T> b) {
-        while(true) synchronous {
+        while(true) sync {
             if(fires(a)) {
                 auto m = get(a);
                 if(fires(b)) put(b, m);
@@ -1257,7 +1257,7 @@ fn xrouter_comp() {
         }
     }
     primitive sync_drain<T>(in<T> a, in<T> b) {
-        while(true) synchronous {
+        while(true) sync {
             if(fires(a)) {
                 msg drop_it = get(a);
                 msg on_the_floor = get(b);
@@ -1320,7 +1320,7 @@ fn count_stream() {
     primitive count_stream(out<msg> o) {
         msg m = create(1);
         m[0] = 0;
-        while(true) synchronous {
+        while(true) sync {
             put(o, m);
             m[0] += 1;
         }
@@ -1351,7 +1351,7 @@ fn for_msg_byte() {
         while(i<8) {
             msg m = create(1);
             m[idx] = i;
-            synchronous put(o, m);
+            sync put(o, m);
             i += 1;
         }
     }
@@ -1379,7 +1379,7 @@ fn eq_causality() {
     primitive eq(in<msg> a, in<msg> b, out<msg> c) {
         msg ma = create(0);
         msg mb = create(0);
-        while(true) synchronous {
+        while(true) sync {
             if(fires(a)) {
                 // b and c also fire!
                 // left first!
@@ -1435,7 +1435,7 @@ fn eq_no_causality() {
     primitive eqinner(in<msg> a, in<msg> b, out<msg> c, out<msg> leftfirsto, in<msg> leftfirsti) {
         msg ma = create(0);
         msg mb = create(0);
-        while(true) synchronous {
+        while(true) sync {
             if(fires(a)) {
                 // b and c also fire!
                 if(fires(leftfirsti)) {